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Title: Heat source probe for measuring thermal conductivity in waste rock dumps.
Authors: Blackford, MG
Harries, JR
Issue Date: Oct-1985
Publisher: Australian Nuclear Science and Technology Organisation
Abstract: The development and use of a heat source probe to measure the thermal conductivity of the material in a waste rock dump is described. The probe releases heat at a constant rate into the surrounding material and the resulting temperature rise is inversely related to the thermal conductivity. The probe was designed for use in holes in the dump which are lined with 50 mm i.d. polyethylene liners. The poor thermal contact between the probe and the liner and the unknown conductivity of the backfill material around the liner necessitated long heating and cooling times (>10 hours) to ensure that the thermal conductivity of the dump material was being measured. Temperature data acquired in the field were analysed by comparing them with temperatures calculated using a two-dimensional cylindrical model of the probe and surrounding material and the heat transfer code HEATRAN.
ISBN: 0642598169
Appears in Collections:Scientific and Technical Reports

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